fix: construct initializeprob if initial value is symbolic
#5501
| Job | Run time |
|---|---|
| 14m 17s | |
| 6m 33s | |
| 14m 13s | |
| 14m 12s | |
| 14m 16s | |
| 14m 11s | |
| 14m 12s | |
| 14m 10s | |
| 39s | |
| 14m 12s | |
| 14m 11s | |
| 14m 12s | |
| 14m 13s | |
| 2h 43m 31s |